Home / 18,892.13-28,339.36-5,745.47

Finding the Fourth Proportional to 18,892.13, 28,339.36 and 5,745.47

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Solution

The fourth proportional to 18,892.13, 28,339.36 and 5,745.47 is: 8,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,892.13 : 28,339.36 = 5,745.47 : x
  2. Step 2: Convert to fraction form
    18,892.13/28,339.36 = 5,745.47/x
  3. Step 3: Cross multiply
    18,892.13x = 28,339.36 × 5,745.47
  4. Step 4: Simplify right side
    18,892.13x = 162,822,786.64
  5. Step 5: Solve for x
    x = 162,822,786.64/18,892.13
  6. Step 6: Final answer
    x = 8,618.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.